Weatherproofing material



Patented June 2, 1931 UNITED STATES PATENT- OFFICE ALBERT G. FISCHER, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE PHILIP CAREY MANU- FACTURING COMPANY, A CORPORATION OF OHIO WEATHERPROOFING MATERIAL No Drawing.

This invention relates primarily to Weatherproofing material, whether used for roofing purposes, siding, flooring, road construction, in fact any type of construction or 5 flooring material which is primarily directed to be used as an expansion joint, but is particularly adapted for use as siding, floor covering, or expansion joint purposes. The material is a radical departure from the prior art, in that it greatly exceeds in tensile strength anything heretofore produced in mixed compositions for the purpose outlined, and since the material does not depend upon fabric reinforcement or anything of like nature for its tensile strength.

I find that the tensile strength of expansion joints can be greatly improved by combining finely divided materials and other materials which are not finely divided, acting in the capacity of strengthening webs in the mass.

I find that the tensile strength of an expansion joint can be greatly increased by mixing approximately 35% of roofing scrap, which consists mostly of finely divided material saturated with bituminous material, and again coating. it with higher melting point bituminous material. By heating this material in liquid asphalt, preferably of a blown nature, the bituminous material is more or less absorbed. In mixing, some of the finely divided material separates out, other pieces of the saturated felt remain more or less in a whole condition and assist as strengthening webs.

5 By adding approximately 10% corn husks,

I find that the corn husks do not readily break apart, and, therefore, form a very efiective strengthening material to the sheet, increasing the tensile strengthas much asone hundred pounds to the square inch.

The husk material is incorporated whole and the formula employed is approximately in excess of asphalt, 25% roofing scrap and 5% husk material. The preferred 4 formula is approximately asphalt, 35%

roofing scrap and 10% corn husks.

In the place of corn husks may be used other cane materials having leaves or blades of broad nature, in preference to such classes of vegetation or grasses which have narrow,

Application filed October 16, 1925. Serial No. 6 2,911.

thin blades, the purpose being to take advan-. tage of the greater width and length of such vegetation as corn, sugar cane, sorghum, palmetto leaves, or in fact anything which has width and length and which may be incorporated as a binding material and as a strengthening material for the mass.

The finely divided material gives body to the structure, and may be composed of asbestos fibre, mineral wool, cotton linters, finely divided fabrics, finely divided grasses, light cellular cereal husks, in fact anything which would act as a bulk making filler giving body, as it in itself would not add to the strength of the mass materially My invention consists of building up a bulk prepared mass, in which the body structure is intermixed and rolled or moulded into slabs or sheets. I find this combination produces a sheet having a tensile strength superior to that of any composition strips of similar character heretofore manufactured as fully tested and proved on machines for making these tests. Any suitable powerful mixing device may be employed, and the percentages of fibrous material, husk material and asphalt may be varied, although the quantities given have shown a very marked improvement in the tensile strength of expansion joint prepared from such sheets, and it may be that other percentages of the same material will show a greater strength.

The husk material may be penetrated or not, depending upon the consistency and degree of waterproofing required.

All expansion joints heretofore, except those which were manufactured by the applicant, have shown saturated masses. In this invention, the fibrous content need not necessarily be saturated in order to prove efficient, but much of the material involved will become saturated in the mixing, and all of the material will become coated. By coated, is meant fibrous matter which may have'its surface partially saturated but the core entirely free from saturation, thus while it may be waterproof and free from decay it I claim:

1. A prepared expansion joint composed of 55% bituminous matter, 35% roofing scrap and corn husks.

2. A preformed article of manufacture composed of bituminous material, finely divided fibres and broad pieces of fibrous material.

3. A preformed article of manufacture 5 composed of bituminous material, finely divided material saturated with bituminous substance, and broad pieces of fibrous material.

4. Prepared strips composed of bituminous material, waterproofed finely divided fibrous material and wide pieces of reenforcing inserts.

5. The method of increasing the tensile strength of prepared expansion joint b incorporating with bituminous material nely divided fibrous material and adding thereto coarse, wide pieces of vegetable, fibrous matter which will not readily break apart in mixing, combining these three in a mixer and preparing same in sheet form for use as an expansion joint.

6. As an article of manufacture sheet material composed of bituminous matter, finely divided fibrous material saturated with bitu- -minous material, and strong wide vegetable leaves, suitably mixed, adapted as a weatherproofing material in construction work.

7. As an article 0iv manufacture sheet material composed of bituminous matter, finely divided fibrous material saturated with bituminous material, and wide vegetable husks, suitably mixed, adapted as a weatherproofing material in construction work.

8. As an article of manufacture sheet material composed of bituminous matter, finely divided fibrous material saturated with bituminous material, and strong, fibrous, broadleaved vegetable matter, suitably mixed, adapted as a weatherproofing material in construction work.

9. The method of increasing the tensile strength of prepared composition strips by incorporating with Bituminous material finely divided fibrous material and adding thereto broad leaved vegetable matter which will not readily break apart in mixing, combining these three in a mixer and preparing the same for use as an expansion joint.

Signed at Chicago, Illinois, this 13th day ALBERT C. FISCHER.

. of 0a.,1925. 

